Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2

RSFSR Issues 1918-23

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Start price: $300

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1922 (December 6), ”Sword Breaking Chain” 35k ultramarine, horizontal imperforate pair, and 35k light blue (rare color variety), used together on cover from Moscow to Lithuania, tied by Moscow date stamps, upon arrival tied by Kaunas ”11.12.22” marking, minor reversal soiling, still F/VF and extremely rare franking on philatelic cover, sent in 1922 out of appropriate postal rate, when using these stamps was prohibited, Est. $600-$700, Scott #149 var, 149a